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Table 2 Description of the Normal weight and Underweight groups

From: Underweight children are agile but lack power

  Groups p-value
Normal weight Underweight
Boys/girls (N) 365/319 94/75 0.598a
Country: Ghana/South Africa (N) 327/357 121/48 < 0.001a
Age (years, mean (SD); range) 9.2 (1.8); 5.9–12.9 9.5 (1.7); 5.8–12.9 0.037b
Height (cm, mean (SD); range) 133.8 (11.9); 107–167 134.5 (11.6); 111–185 0.466b
Weight (kg, mean (SD); range) 29.69 (7.25); 16.2–56.7 24.75 (5.24); 11.6–41.1 < 0.001b
BMI (kg/m2, mean (SD); range) 16.32 (1.51); 13.89–21.39 13.55 (1.27); 6.00–15.21 < 0.001b
Waist-to-height ratio (mean (SD); range) 0.445 (0.036); 0.32–0.60 0.418 (0.030); 0.36–0.50 < 0.001b
Stunting (N) 25 6 0.948a
Socio-economic area
 Low 288 81 0.039a
 Low-middle 281 73  
 Middle 52 10  
 High 63 5  
  1. Legend: a two-tailed Chi-square test; b one-way analysis of variance. Bold values indicate significant differences